20130021320311 has 12 divisors (see below), whose sum is σ = 23456447364168. Its totient is φ = 17224909919952.

The previous prime is 20130021320303. The next prime is 20130021320333. The reversal of 20130021320311 is 11302312003102.

It is not a de Polignac number, because 20130021320311 - 2³ = 20130021320303 is a prime.

It is a super-2 number, since 2×20130021320311² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130021320711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 349900336 + ... + 349957861.

It is an arithmetic number, because the mean of its divisors is an integer number (1954703947014).

Almost surely, 2^{20130021320311} is an apocalyptic number.

20130021320311 is a deficient number, since it is larger than the sum of its proper divisors (3326426043857).

20130021320311 is an equidigital number, since it uses as much as digits as its factorization.

20130021320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699858798 (or 699858791 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20130021320311 its reverse (11302312003102), we get a palindrome (31432333323413).

The spelling of 20130021320311 in words is "twenty trillion, one hundred thirty billion, twenty-one million, three hundred twenty thousand, three hundred eleven".